Is calculation history saved?

Yes. Calculation history is displayed and past results can be reused.

Can tax calculations be done?

Yes. You can set the tax rate and calculate tax-included/excluded amounts.

Yes. Number keys and operator keys can be used.

Yes. The tax rate can be changed in settings. You can switch between Japan's standard rate (10%) and reduced rate (8%).

Yes. The displayed calculation formula and result can be copied to the clipboard with the copy button.

Simple and easy-to-use calculator. Includes history reuse and tax-inclusive/exclusive calculation.

Tax Rate: %

History

Is calculation history saved?: Yes. Calculation history is displayed and past results can be reused.
Can tax calculations be done?: Yes. You can set the tax rate and calculate tax-included/excluded amounts.
Is keyboard input supported?: Yes. Number keys and operator keys can be used.
Can the tax rate be changed?: Yes. The tax rate can be changed in settings. You can switch between Japan's standard rate (10%) and reduced rate (8%).
Can I copy the calculation formula?: Yes. The displayed calculation formula and result can be copied to the clipboard with the copy button.

Last Updated: 2026-02-21